Extramural grants account for approximately 83 percent of NIH's $30 billion budget. These are awarded to investigators throughout the U.S. and abroad. Approximately 10 percent of the NIH budget supports NIH intramural investigators, NIH staff who conduct research. The NIH Office of Extramural Research (OER) supports extramural research by providing policy and guidance to the 24 NIH Institutes and Centers that award grants. OER serves as a vital interface between the NIH and the biomedical research community by guiding investigators through the process of attaining grants funding and helping them understand and navigate through federal policies and procedures.